Recovery from COVID-19: a sprint or marathon? 6-month follow-up data from online long COVID-19 support group members oleh Anouk W. Vaes, Yvonne M.J. Goërtz, Maarten Van Herck, Felipe V.C. Machado, Roy Meys, Jeannet M. Delbressine, Sarah Houben-Wilke, Swetlana Gaffron, Dieter Maier, Chris Burtin, Rein Posthuma, Nicole P.H. van Loon, Frits M.E. Franssen, Bita Hajian, Sami O. Simons, Job F.M. van Boven, Frederikus A. Klok, Bart Spaetgens, Claire M.H. Pinxt, Limmie Y.L. Liu, Geertjan Wesseling, Yvonne Spies, Herman Vijlbrief, Alex J. van ’t Hul, Daisy J.A. Janssen, Martijn A. Spruit